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• Today, 14:51
I'm more active on FMH, and still not great there, but I think a merge, in my humble opinion, would be a good thing for the help community. The...
1 replies | 108 view(s)
• Yesterday, 17:02
Prove It is not giving you the answer he is giving you a suggestion that you can use the limit he posted. See if there is any kind of substitution...
4 replies | 76 view(s)
• Yesterday, 16:46
This should be fairly simple, convert 360 degrees in 18 minutes to x degrees in 1 minute. The graph shows height of a capsule above the ground in...
2 replies | 43 view(s)
• Yesterday, 12:06
Hi all, I think even we do switch to XF (is still going to happen) the time has come to make a change. We have a database of amazing content here...
1 replies | 108 view(s)
• Yesterday, 11:37
Hi all, I hope you are all safe, healthy, and not affected in a serious way by the world wide COVID-19 virus. Here in the US it has completely...
0 replies | 47 view(s)
• Yesterday, 11:33
skeeter replied to a thread [SOLVED] Transportation calculus in Pre-Algebra and Algebra
that's my mistake ... should be 14.9. I doubled the numerator and denominator to get the coefficient of $n$ to be 1 instead of 0.5. When I decided...
10 replies | 355 view(s)
• Yesterday, 10:30
\frac{\left(x\sin\left(\pi\left(x-1\right)\right)\right)}{e^{x/9}(x-1)} The above graph shows that the function repeats its value at $x=1$ when $x$...
2 replies | 41 view(s)
• Yesterday, 09:09
skeeter replied to a thread [SOLVED] Transportation calculus in Pre-Algebra and Algebra
what does n-1 represent? in the equation I wrote in post #4, $n$ represents the number of additional freight loads
10 replies | 355 view(s)
• Yesterday, 01:44
Why are you plugging in large negative values for x? Surely for an infinite limit you should be plugging in large positive values. As for a hint,...
4 replies | 76 view(s)
• April 5th, 2020, 20:46
Prove It replied to a thread [SOLVED] Limit of exponential function in Pre-Calculus
This is a $\displaystyle 1^{\infty}$ indeterminate form. It can be transformed into a form that can use L'Hospital's Rule by $\displaystyle... 7 replies | 232 view(s) • April 5th, 2020, 10:58 skeeter replied to a thread [SOLVED] Transportation calculus in Pre-Algebra and Algebra I have a better idea ... explain how you derived your function. 10 replies | 355 view(s) • April 5th, 2020, 10:02 Since this is of the form$\displaystyle \frac{f\left( t \right)}{t} $we should use$\displaystyle \mathcal{L}\,\left\{ \frac{f\left( t \right) }{t}...
0 replies | 48 view(s)
• April 5th, 2020, 09:15
To apply this Runge-Kutta scheme, we will need to write our second order DE as a system of first order DEs. Let $\displaystyle u = y$ and...
0 replies | 37 view(s)
• April 5th, 2020, 08:53
The Bisection Method solves equations of the form $\displaystyle f\left( x \right) = 0$ so we must write the equation as $\displaystyle 11\cos{... 0 replies | 149 view(s) • April 5th, 2020, 03:46 The Secant Method is a numerical scheme to solve equations of the form$\displaystyle f\left( x \right) = 0 $, so we must rewrite the equation as... 1 replies | 169 view(s) • April 4th, 2020, 21:13 Prove It replied to a thread Need help in Analysis It's a bit hard to use something that you haven't given us... 1 replies | 223 view(s) • April 4th, 2020, 12:16 skeeter replied to a thread [SOLVED] Transportation calculus in Pre-Algebra and Algebra simplified the initial cost function ...$C(v) = 1375\left(\dfrac{44.5}{v} + \dfrac{14.9}{180-v}\right)$minimum cost occurs at$v \approx 114...
10 replies | 355 view(s)
• April 4th, 2020, 09:26
skeeter replied to a thread [SOLVED] 299What is the acceleration in Calculus
$v(t) = \cos{t}+\sin{t} \implies a(t) = \cos{t}-\sin{t} \implies a\left(\dfrac{3\pi}{4}\right) = -\sqrt{2}$
4 replies | 274 view(s)
• April 4th, 2020, 04:14
This is actually a proof of (ii) $\Rightarrow$ (iii) in Lemma 3.2. So we are assuming that (ii) holds. In particular, since $\overline{ f(A) }$ is...
1 replies | 194 view(s)
• April 3rd, 2020, 15:47
I have obtained access to the full solutions manual, after contacting Wiley about it. I will not type up the solution in full, but simply note a few...
1 replies | 250 view(s)
• April 3rd, 2020, 10:39
skeeter replied to a thread [SOLVED] Transportation calculus in Pre-Algebra and Algebra
What are your units for speed, the $x$ in your cost function? I get cost as a function of speed, $v$, in km/hr ... $C(v) = 1375 \bigg$ unit...
10 replies | 355 view(s)
• April 3rd, 2020, 00:50
Newton's Method solves an equation of the form $\displaystyle f\left( x \right) = 0$, so we need to rewrite the equation as $\displaystyle... 0 replies | 195 view(s) • April 2nd, 2020, 17:07 skeeter replied to a thread f in Calculus don't know math ... ? 5 replies | 303 view(s) • April 2nd, 2020, 15:47 In the mid-1990's, an electrical engineer/computer scientist by the name of Judea Pearl started to change the world by greatly improving our... 0 replies | 213 view(s) • April 2nd, 2020, 11:56 topsquark replied to a thread f in Calculus I believe the proper question is "What the 'f'?" -Dan 5 replies | 303 view(s) • April 1st, 2020, 15:04$\newcommand{\doop}{\operatorname{do}}$Problem: (This is from Study question 4.3.1 from Causal Inference in Statistics: A Primer, by Pearl,... 1 replies | 250 view(s) • April 1st, 2020, 08:33 The Bisection Method is used to solve equations of the form$\displaystyle f\left( x \right) = 0 $, so we need to rewrite the equation as... 0 replies | 206 view(s) • April 1st, 2020, 07:44 You first have to write this DE as a system of first order equations. Note, since$\displaystyle t$does not appear in the original DE, that means... 0 replies | 193 view(s) More Activity ### 22 Visitor Messages 1. Best regards Dan Please help me solve 6n-5p/11t=c 2. Have a wonderful, happy, healthy birthday now and forever! 3. Happy Birthday, topsquark!!! 4. Hey Topsquark! Think you could check my quantum physics question? Thanks! 5. so he just kept posting the same thing over and over??? dam. ban him and say it was a mistake. like you did with nycmath. that one was sooo funny lol because i always thought he was annoying 6. i was reading the thread by alexchan on mhf "I'm sorry for before action. Hopefully, we can continue to discuss." did u delete the original thread? because now I HAVE TO know what he got in trouble for. tell meeeee dan pleeeeaaase. 7. hiiiiiiiiiii a few of us have been talking about it since yesterday. come to mathhelpboards.com/chat/ that place needs ur funnyness!!!! 8. The last ten digit is 8000000018 but not 6795421006 because$44!+9= 2658271574788448768043625811014615890319638528000000018 \ne 2658271574788448768043625811014615890319638526795421006\$.
9. Hey Dan, so, you are now 44! (44 factorial + 9 days) old? Hehehe...
10. Happy Birthday Dan!!
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